| 字词 | 用心 |
| 释义 | 用心 yòng xīn （集中注意力) diligently; attentively; with concentrated attention: 用心去想一想 do some hard thinking; 用心学习 concentrate on one's studies; study diligently; 用心听讲 listen attentively to a lecture; 用心做习题 work hard at exercises （居心） motive; intention: 别有用心 have ulterior motives; 用心不良 vicious intention |
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